477959c8aecaf3cd9d0e105024d647b936d9595bf726a33d82f5df7990e36921

Analysis

max time kernel
145s
max time network
140s
platform
windows7_x64
resource
win7-20231201-en
resource tags

arch:x64arch:x86image:win7-20231201-enlocale:en-usos:windows7-x64system
submitted
10/12/2023, 20:42

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General

Target

tuc5.exe
Size

6.9MB
MD5

b4336ca6bab18f9d3521804993eeefd9
SHA1

1f35615eef691d59ccdbde87bd02f7a6d5fc40c5
SHA256

477959c8aecaf3cd9d0e105024d647b936d9595bf726a33d82f5df7990e36921
SHA512

f3d8f4cf595273203a7d15f55d491af64d520bfefb020254b318eed657d9790c5308a32fb4624d23c2469da35358f9770d5a9f1c1f716fee8c2038fc3bec0222
SSDEEP

196608:IxnTNzjsOzc7TGHscDgcXbIdslX38dgFYJzj:gNztzQlcDPXus98d9Jzj

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
1704	tuc5.tmp
764	crtgame.exe
2892	crtgame.exe

Loads dropped DLL 6 IoCs

pid	Process
2152	tuc5.exe
1704	tuc5.tmp
1704	tuc5.tmp
1704	tuc5.tmp
1704	tuc5.tmp
1704	tuc5.tmp

Unexpected DNS network traffic destination 2 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	194.49.94.194
Destination IP	152.89.198.214

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 63 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-UTNA9.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-QAFSI.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-20S50.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-H2P1Q.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-MO9ME.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-KQG6M.tmp	tuc5.tmp
File opened for modification	C:\Program Files (x86)\CRTGame\crtgame.exe	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\uninstall\unins000.dat	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-SV5UI.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-H0CBL.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-CV2K6.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-12RO7.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-G5RPP.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-5ADOT.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-JU12J.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\uninstall\is-5FC4S.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-87UL9.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-NTQ7U.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\is-MUM4M.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-ROIBD.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-9HJF4.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-6SCI9.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-OU4VS.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-N484U.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-G76VL.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-FBDT3.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-URAMT.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-GF5TV.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-LO7V5.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-QV58T.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-UHM4D.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\lessmsi\is-PVO2P.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-3IT25.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-ITVST.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\plugins\internal\is-H686S.tmp	tuc5.tmp
File opened for modification	C:\Program Files (x86)\CRTGame\uninstall\unins000.dat	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-H8A63.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-C94L1.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-T4FFL.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-G7JB3.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-BJTL2.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-B7GI2.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-GFLFG.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-DTISM.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-QM18H.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-1MAIM.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-QL9N2.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-461V0.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-ELOIO.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\plugins\internal\is-N3HFP.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-4RUOC.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-97O7S.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-CH4JN.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-D8416.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-Q8Q21.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-H649S.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-Q3FFC.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-QLC4M.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-I8D42.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-R4MD2.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-T14PE.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-0SKHO.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-DEPN1.tmp	tuc5.tmp

Runs net.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1704	tuc5.tmp

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 1704	2152	tuc5.exe	28
PID 2152 wrote to memory of 1704	2152	tuc5.exe	28
PID 2152 wrote to memory of 1704	2152	tuc5.exe	28
PID 2152 wrote to memory of 1704	2152	tuc5.exe	28
PID 2152 wrote to memory of 1704	2152	tuc5.exe	28
PID 2152 wrote to memory of 1704	2152	tuc5.exe	28
PID 2152 wrote to memory of 1704	2152	tuc5.exe	28
PID 1704 wrote to memory of 816	1704	tuc5.tmp	31
PID 1704 wrote to memory of 816	1704	tuc5.tmp	31
PID 1704 wrote to memory of 816	1704	tuc5.tmp	31
PID 1704 wrote to memory of 816	1704	tuc5.tmp	31
PID 1704 wrote to memory of 764	1704	tuc5.tmp	30
PID 1704 wrote to memory of 764	1704	tuc5.tmp	30
PID 1704 wrote to memory of 764	1704	tuc5.tmp	30
PID 1704 wrote to memory of 764	1704	tuc5.tmp	30
PID 1704 wrote to memory of 1616	1704	tuc5.tmp	35
PID 1704 wrote to memory of 1616	1704	tuc5.tmp	35
PID 1704 wrote to memory of 1616	1704	tuc5.tmp	35
PID 1704 wrote to memory of 1616	1704	tuc5.tmp	35
PID 1704 wrote to memory of 2892	1704	tuc5.tmp	34
PID 1704 wrote to memory of 2892	1704	tuc5.tmp	34
PID 1704 wrote to memory of 2892	1704	tuc5.tmp	34
PID 1704 wrote to memory of 2892	1704	tuc5.tmp	34
PID 1616 wrote to memory of 2704	1616	net.exe	33
PID 1616 wrote to memory of 2704	1616	net.exe	33
PID 1616 wrote to memory of 2704	1616	net.exe	33
PID 1616 wrote to memory of 2704	1616	net.exe	33

C:\Users\Admin\AppData\Local\Temp\tuc5.exe
"C:\Users\Admin\AppData\Local\Temp\tuc5.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Users\Admin\AppData\Local\Temp\is-G0U4F.tmp\tuc5.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-G0U4F.tmp\tuc5.tmp" /SL5="$70122,7025884,54272,C:\Users\Admin\AppData\Local\Temp\tuc5.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1704
- - C:\Program Files (x86)\CRTGame\crtgame.exe
    "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
    3⤵
    - Executes dropped EXE
    PID:764
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\system32\schtasks.exe" /Query
    3⤵
    PID:816
- - C:\Program Files (x86)\CRTGame\crtgame.exe
    "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2892
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" helpmsg 10
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1616

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 helpmsg 10
1⤵
PID:2704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\CRTGame\crtgame.exe

Filesize
645KB

MD5
3fbdf8f39d577767bcff787d03c3c8be

SHA1
5d008cd329bff65513c5488c20899c010c051a2e

SHA256
763bc16049d0add347733f62a57557992aa7d3ec1e95e604739bd400fea670af

SHA512
05c35a507e3443f1a770f6f62d84af49415588f11cfbdf2060b4b7aad6b197e621b313408dd55e7870b66a732d21edfe5c47a63c9e8311a6c7051b4efed45a71

Download Submit
C:\Program Files (x86)\CRTGame\crtgame.exe

Filesize
303KB

MD5
c937d9c14e45c9311faade50f7389ad7

SHA1
fe4b41e0a4535eb47936cbd0057fa656968a9519

SHA256
ead059d11c6f4a526293aa5a6aa1c6fab7cb38dee04731e8b898bf3e4b9277a3

SHA512
eacdbac7e122c573858aa4d22ab3a36135c26eb51fc3944731dfc2984e4ba73d40d10a78ac52c3c158ddf45c7a5cf100f81f23d035a0d79b6e76cfea69881940

Download Submit
C:\Program Files (x86)\CRTGame\crtgame.exe

Filesize
307KB

MD5
633ca523c269d2f15db8020d4601fa99

SHA1
e377051e47a95ff0b680067e395497d7674512f6

SHA256
3102f1e59aa41da877537a9b9dcc50738a8c53bf93c58f4c4dfe29f36217722a

SHA512
9682f65f8e171f14fade7de5259fecafabf6bd2e08d747874ff5b4f2c17a29820c2d42062097487dfbb7b8ea89c4016eccf3805336c6d6ce4ad700dc51fc6dc3

Download Submit
\Program Files (x86)\CRTGame\crtgame.exe

Filesize
370KB

MD5
1847987be89fd94dc799a8a3d444359c

SHA1
b352b96500b7943a7cf80ecf5b23476b8eaf6e69

SHA256
0815cd00fe596da5e63295f8f1ff1347f30afb67a0edf0699b0524f53ff2f834

SHA512
67fc409c01d73219fcd12340f62835068bc5d064f71c88e4903208f54d928d2e2fcd4bbe09e9fbb61192f5f1e562804a75a7b93aade05e1b754929d334b89f41

Download Submit
\Users\Admin\AppData\Local\Temp\is-F9AC9.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-F9AC9.tmp\_isetup\_isdecmp.dll

Filesize
19KB

MD5
3adaa386b671c2df3bae5b39dc093008

SHA1
067cf95fbdb922d81db58432c46930f86d23dded

SHA256
71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

SHA512
bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

Download Submit
\Users\Admin\AppData\Local\Temp\is-F9AC9.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-G0U4F.tmp\tuc5.tmp

Filesize
687KB

MD5
f448d7f4b76e5c9c3a4eaff16a8b9b73

SHA1
31808f1ffa84c954376975b7cdb0007e6b762488

SHA256
7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

SHA512
f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

Download Submit
memory/764-153-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/764-154-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/764-157-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/764-158-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/1704-15-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1704-152-0x0000000003800000-0x0000000003A1E000-memory.dmp

Filesize
2.1MB

Download
memory/1704-164-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/1704-169-0x0000000003800000-0x0000000003A1E000-memory.dmp

Filesize
2.1MB

Download
memory/1704-166-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2152-163-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2152-1-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2892-187-0x0000000002A50000-0x0000000002AF2000-memory.dmp

Filesize
648KB

Download
memory/2892-162-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2892-160-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2892-170-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2892-171-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2892-174-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2892-177-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2892-180-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2892-165-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2892-183-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2892-193-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2892-190-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2892-184-0x0000000002A50000-0x0000000002AF2000-memory.dmp

Filesize
648KB

Download
memory/2892-194-0x0000000002A50000-0x0000000002AF2000-memory.dmp

Filesize
648KB

Download
memory/2892-197-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2892-200-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2892-203-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2892-206-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2892-209-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2892-213-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download